Which of the following is NOT an example of Personal Protective Equipment (PPE)?

Personal Protective Equipment (PPE) is designed to protect workers from hazards that could cause injury or illness in the workplace. Each of the items listed plays a specific role in ensuring safety.

Hard hats are essential for protecting the head from falling objects, which is particularly important on construction sites or in environments where overhead hazards are present. Dust masks help prevent inhalation of harmful dust and airborne particles, important for those working in environments where respiratory health is a concern. Aprons can protect the body and clothing from spills, sharp objects, or other hazardous materials, thus reducing the risk of injury from contact with these substances.

Sneakers, while comfortable and commonly worn for general purposes, do not serve a protective function that is specific to workplace hazards. They do not provide the necessary protection that is characteristic of standard PPE, such as impact resistance or chemical protection. Thus, they are not classified as Personal Protective Equipment, making them the correct choice in this question.